Have you ever wanted to send a secret message to a friend that no one else can read? Invisible inks can help you do that! When you use an invisible ink to write a message, it quickly disappears. The ...

In this video I show you how I make magic ink using simple kitchen ingredients. I mix baking soda and water to write a hidden ...

Using the Notes app on your iPhone as a messaging app is a surprisingly clever way to have a discreet conversation. You can use it to plan a surprise party for a loved one or disguise sensitive ...